CN107387498A - ME Type B marine low-speed machine pressure accumulation block assembly function test methods - Google Patents
ME Type B marine low-speed machine pressure accumulation block assembly function test methods Download PDFInfo
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- CN107387498A CN107387498A CN201710731430.4A CN201710731430A CN107387498A CN 107387498 A CN107387498 A CN 107387498A CN 201710731430 A CN201710731430 A CN 201710731430A CN 107387498 A CN107387498 A CN 107387498A
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- pressure
- leakage
- valves
- oil
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
Abstract
The invention discloses a kind of ME Type Bs marine low-speed machine pressure accumulation block assembly function test method, each check valve on inspection pressure accumulation block assembly, 212 pressure-reducing valves, 210 magnetic valves, 213 pressure-reducing valves, 311 pressure-reducing valves, the function of 315 ball valves successively, and the function validity for judging pressure accumulation block assembly is showed according to different tests, ensure pressure accumulation block assembly energy normal work in follow-up use by testing, or tested in maintenance by this come tracing trouble point.The present invention can verify the function of ME Type B marine low-speed machine pressure accumulation block assemblies comprehensively, exactly, and can find out failpoint in time and be repaired, and ensure that the quality of product, also provide a set of efficient diagnostic method for after-sales service.
Description
Technical field
The invention belongs to ME-B type marine low-speed machines field, and in particular to the storage in low speed machine in hydraulic power supply system
Briquetting assembly test method.
Technical background
In ME-B type marine low-speed machines, many systems such as fuel oil supply system, oil system use hydraulic power mould
Formula, and main function of the pressure accumulation block assembly in low speed machine is exactly that being delivered to for the hydraulic oil to be pressurizeed through hydraulic power unit stabilization is each
In system.If pressure accumulation block assembly breaks down when in use, it will has influence on the operation of whole low speed machine.Therefore, in pressure accumulation block
Assembly can test before installing and using to its performance, it will help reduce the possibility occurred using failure.In addition, if going out
Trouble point can be found in time after existing failure, can also effectively improve maintenance efficiency.But do not have at present to the function of pressure accumulation block assembly
There is professional, specific, comprehensive verification method.
The content of the invention
The present invention proposes ME-B type marine low-speed machine pressure accumulation block assembly function test methods, can quickly judge ME-B type ships
Whether the function with low speed machine pressure accumulation block assembly is normal.
ME-B types marine low-speed machine pressure accumulation block assembly function test method of the present invention, comprises the following steps：
A. check whether each check valve is qualified；
B. on the premise of each check valve is qualified, check whether 212 pressure-reducing valves are qualified；
C. on the premise of 212 pressure-reducing valves are qualified, check whether 210 magnetic valves are qualified；
D. on the premise of 210 magnetic valves are qualified, check whether 213 pressure-reducing valves are qualified；
E. on the premise of 213 pressure-reducing valves are qualified, check whether 311 pressure-reducing valves are qualified；
F. on the premise of 313 valves are qualified, check whether 315 ball valves are qualified；
If each step experiment is qualified above, then it represents that the function of ME-B type marine low-speed machine pressure accumulation block assemblies is normal.
Further, the step a is specially：
Two check valves are gently pressed with hand, if each check valve freely activity without catching phenomenon, can seal high pressure oil export and connect
Pressure testing oil oil inlet, 211 ball valves are then opened, close 315 ball valves, 210 magnetic valves are in power down state；Enter from pressure testing oil
Hydraulic fluid port input pressure oil is to first pressure value, and pressurize 5 minutes, whether two check valve oil inlets of observation have oily leakage, if nothing is let out
Leakage, then prove that each non-return valve function is normal, carries out next step experiment；If there is leakage, prove there there is check valve corresponding to leak
Problem, it should be opened and inspect or be changed problematic check valve and be tested again to pass the test.
Further, the step b is specially：
Continue to raise input pressure to second pressure value, observe whether smaller pressure oil escape orifice has oily leakage, if No leakage,
Prove that 212 pressure-reducing valves are normal, if there is leakage, hexagonal to steady pressure of system, continues rise oil in the decompression of regulation 212 valve head manually
Pressure, then observe at smaller pressure oil escape orifice whether have oily leakage, if there is leakage, prove that 212 pressure-reducing valve is normal, if nothing is let out
Leakage, then prove that 212 pressure-reducing valves are abnormal, should be opened and inspect or changed 212 pressure-reducing valve and test again to pass the test.
Further, the step c is specially：
24V power supplys are accessed to 210 magnetic valves, input current are adjusted, if system pressure gradually increases with the increase of input current
Add, then prove that 210 magnetic valves are normal, if system pressure is unchanged, it is abnormal to illustrate that 210 magnetic valves are present, 210 electricity need to be changed
Magnet valve and again experiment are until pass the test.
Further, the step d is specially：
Continue to raise input pressure to the 3rd pressure value, whether observe at smaller pressure oil escape orifice has oily leakage, if No leakage,
Then prove that 213 pressure-reducing valves are normal, if there is leakage, hexagonal to steady pressure of system, then proceedes in the decompression of regulation 213 valve head manually
Pressure is raised, whether have oily leakage, if there is leakage, prove that 213 pressure-reducing valve is normal if observing at smaller pressure oil escape orifice, if
No leakage, then prove that 213 pressure-reducing valves are abnormal, need to open and inspect or change 213 pressure-reducing valve and test again to qualified.
Further, the step e is specially：
Pressure testing oil input pressure is first reduced to zero, afterwards sealed smaller pressure oil escape orifice, rise pressure testing oil is then proceeded to and enters
For oil pressure to the 4th pressure value, whether have oily leakage, if No leakage, prove 311 decompressions if observing at larger pressure oil escape orifice
Valve function is normal, if there is leakage, hexagonal to steady pressure of system, continues rise pressure testing oil and entered in the decompression of regulation 311 valve head manually
Whether oil pressure, observing at larger pressure oil escape orifice has oily leakage, if there is leakage, proves that 311 pressure-reducing valve is normal, if nothing
Leakage, then prove that 311 pressure-reducing valves are abnormal, should be opened and inspect or changed 311 pressure-reducing valve and test again to qualified.
Further, the step f is specially：
315 ball valves are opened, if there is big gauging to be leaked from larger pressure oil escape orifice, and oil pressure meter pressure is quick from the 4th pressure value
0MPa is down to, then illustrates that 315 ball valves are normal, illustrates that 315 ball valves have problem if No leakage, should be opened and inspect or change this
315 ball valves are simultaneously tested to qualified again.
Further, the first pressure value is 20MPa；
The second pressure value is 22MPa；
3rd pressure value is 31MPa；
4th pressure value is 31.5MPa.
Beneficial effects of the present invention：The present invention examines each check valve, 212 pressure-reducing valves, 210 electricity on pressure accumulation block assembly successively
Magnet valve, 213 pressure-reducing valves, 311 pressure-reducing valves, the function of 315 ball valves, and the function of judging pressure accumulation block assembly is showed according to different tests
Validity, ensure pressure accumulation block assembly energy normal work in follow-up use by testing, or examined in maintenance by this experiment
Disconnected trouble point.The present invention can verify the function of ME-B type marine low-speed machine pressure accumulation block assemblies comprehensively, exactly, and can be timely
Find out failpoint and repaired, ensure that the quality of product, also provide a set of efficient diagnostic method for after-sales service.
Brief description of the drawings
Fig. 1 is the structural representation of ME-B type marine low-speed machine pressure accumulation block assemblies；
Fig. 2 is Fig. 1 A to schematic diagram；
Fig. 3 is the flow chart of the present invention；
In Fig. 1：1st, 315 ball valve, 2,210 magnetic valves, 3,311 pressure-reducing valves, 4,212 pressure-reducing valves, 5,213 pressure-reducing valves, 6,211 balls
Valve, 7, pressure testing oil oil inlet, 8, check valve, 9, larger pressure oil escape orifice, 10, check valve oil inlet, 11, smaller pressure oil lets out
Discharge hole.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
ME-B type marine low-speed machine pressure accumulations block assembly includes 315 ball valves 1,210 magnetic valves 2, the decompression of 311 pressure-reducing valves 3,212
Valve 4,213 pressure-reducing valves 5,211 ball valves 6, pressure testing oil oil inlet 7, check valve 8, larger pressure oil escape orifice 9, check valve oil inlet
10 and smaller pressure oil escape orifice 11, the rigging position of each valve of the above, participate in Fig. 1 and Fig. 2.
As shown in figure 3, ME-B types marine low-speed machine pressure accumulation block assembly function test method of the present invention, including it is following
Step：
A, each check valve 8 is gently pressed with hand first, each check valve 8 should be able to be freely movable and without catching phenomenon.Sealed with sealing frock
High pressure oil export, pressure testing oil oil inlet 7 is then connected, open 211 ball valves 6, closed the magnetic valve 2 of 315 ball valve 1,210 and be in power supply
Closed mode, from the input pressure oil of pressure testing oil oil inlet 7 to first pressure value（Such as：20MPa）, pressurize 5 minutes, observe each list
Whether there is leakage to valve oil inlet 10, if No leakage, prove that each function of check valve 8 is normal, carry out next step experiment；If let out
Leakage, then prove that check valve 8 corresponding to leakage hole is problematic, need to open and inspect or change corresponding check valve 8 and make further inspection, cleaning
To the requirement for meeting experiment No leakage.
B, then proceed to raise input pressure to second pressure value（Such as：22MPa）, observe smaller pressure oil escape orifice 11
Whether place has oil stream to go out, if oil-free flows out, proves that 212 pressure-reducing valve 4 is normal, if there is oily leakage, the decompression of regulation 212 manually
Whether hexagonal is stable to system pressure in the head of valve 4, continues to raise input pressure, then observe and have at smaller pressure oil escape orifice 11
Oil stream goes out, if there is oily leakage, proves that 212 pressure-reducing valve 4 is normal.If No leakage, prove that 212 pressure-reducing valve 4 is abnormal, should
Opened and inspect or changed 212 pressure-reducing valve 4 and tested again to pass the test.
C, 210 magnetic valves 2 access 24V power supplys are given afterwards, input current are adjusted, if system pressure can be with input current
Increase and gradually increase, then prove that 210 magnetic valves 2 are normal, it is abnormal to illustrate that 210 magnetic valves 2 are present if system pressure is unchanged,
210 magnetic valve 2 need to be changed and tested again until qualified.
D, continue to raise input pressure to the 3rd pressure value（Such as：31MPa）, observing at smaller pressure oil escape orifice 11 is
It is no to have oily leakage, if no oil stream goes out, prove that 213 pressure-reducing valves 5 are normal, if there is oily leakage, adjust 213 pressure-reducing valves 5 manually
Hexagonal is stable to system pressure in head, continues to raise input pressure.Whether observe again at smaller pressure oil escape orifice 11 has oil
Leakage, if there is oil stream to go out, prove that 213 pressure-reducing valve 5 is normal, if No leakage, prove that 213 pressure-reducing valves 5 are abnormal, should carry out
Open and inspect or change, and test again to qualified.
E, input pressure is reduced to zero afterwards, then smaller pressure oil escape orifice 11 is sealed with sealing frock, then raised
Input pressure is to the 4th pressure value（Such as：31.5MPa）, whether have oily leakage, if not having if observing at larger pressure oil escape orifice 9
Oil stream goes out, then proves that the function of 311 pressure-reducing valves 3 is normal, if there is oil stream to go out, adjust manually in 311 pressure-reducing valve 3 head hexagonal to
System pressure is stable, continues to raise input pressure, if larger pressure oil escape orifice 9 has oil stream to go out, proves 311 pressure-reducing valve 3
Normally.If oil-free flows out, prove that 311 pressure-reducing valves 3 are abnormal, should be opened and inspect or be changed, and tested again to qualified.
F, 315 ball valves 1 are opened afterwards, if there is big gauging to be leaked from larger pressure oil escape orifice 9, and oil pressure meter pressure from
31.5MPa is quickly down to 0MPa, then illustrates that 315 ball valves 1 are normal, illustrate that this 315 ball valve has problem if No leakage, should carry out
Change, and re-start and test to qualified.
To the function tests of various valves more than, and whether qualified judgement, not only can guarantee that pressure accumulation block assembly
Function is normal, while this test method can be also used for the foundation that trouble point is judged when pressure accumulation block assembly is out of order.It can either protect
The outgoing of pressure accumulation block assembly is demonstrate,proved, and can enough effectively improves maintenance efficiency.
315 ball valves 1 are to be labeled with 315 ball valves disposed out in Fig. 1 in the present invention；210 magnetic valves 2 are to be labeled with Fig. 1
The magnetic valve of 210 opening positions；311 pressure-reducing valves 3 are the pressure-reducing valve that 311 opening positions are labeled with Fig. 1；212 magnetic valves 4 are in Fig. 1
It is labeled with the pressure-reducing valve of 212 opening positions；213 pressure-reducing valves 5 are the pressure-reducing valve that 213 opening positions are labeled with Fig. 1；211 ball valves 6 are figure
The ball valve of 211 opening positions is labeled with 1.
Claims (8)
- A kind of 1. ME-B types marine low-speed machine pressure accumulation block assembly function test method, it is characterised in that comprise the following steps：A. each check valve is checked（8）It is whether qualified；B. in each check valve（8）On the premise of qualified, 212 pressure-reducing valves are checked（4）It is whether qualified；C. in 212 pressure-reducing valves（4）On the premise of qualified, 210 magnetic valves are checked（2）It is whether qualified；D. in 210 magnetic valves（2）On the premise of qualified, 213 pressure-reducing valves are checked（5）It is whether qualified；E. in 213 pressure-reducing valves（5）On the premise of qualified, 311 pressure-reducing valves are checked（3）It is whether qualified；F. in 313 valves（3）On the premise of qualified, 315 ball valves are checked（1）It is whether qualified；If each step experiment is qualified above, then it represents that the function of ME-B type marine low-speed machine pressure accumulation block assemblies is normal.
- 2. ME-B types marine low-speed machine pressure accumulation block assembly function test method according to claim 1, it is characterised in that institute Stating step a is specially：Two check valves are gently pressed with hand（8）If each check valve（8）Freely activity without catching phenomenon, then it can seal high pressure oil export And connect pressure testing oil oil inlet（7）, then open 211 ball valves（6）, close 315 ball valves（1）, 210 magnetic valves（2）In power supply Closed mode；From pressure testing oil oil inlet（7）Input pressure oil pressurize 5 minutes, observes two check valve oil-feeds to first pressure value Mouthful（10）Whether there is oily leakage, if No leakage, prove each check valve（8）Function is normal, carries out next step experiment；If let out Leakage, then prove check valve corresponding to leak（8）It is problematic, it should be opened and inspect or be changed problematic check valve（8）And again Test to pass the test.
- 3. ME-B types marine low-speed machine pressure accumulation block assembly function test method according to claim 2, it is characterised in that institute Stating step b is specially：Continue to raise input pressure to second pressure value, observe smaller pressure oil escape orifice（11）Whether oily leakage is had, if nothing is let out Leakage, then prove 212 pressure-reducing valves（4）Normally, if there is leakage, 212 pressure-reducing valves are adjusted manually（4）Hexagonal is steady to system in head Pressure, continue to raise oil pressure, then observe smaller pressure oil escape orifice（11）Place whether have oily leakage, if there is leakage, prove this 212 Pressure-reducing valve（4）Normally, if No leakage, 212 pressure-reducing valves are proved（4）It is abnormal, it should be opened and inspect or be changed 212 pressure-reducing valve （4）And test again to pass the test.
- 4. ME-B types marine low-speed machine pressure accumulation block assembly function test method according to claim 3, it is characterised in that institute Stating step c is specially：To 210 magnetic valves（2）24V power supplys are accessed, input current are adjusted, if system pressure is gradual with the increase of input current Increase, then prove 210 magnetic valves（2）Normally, if system pressure is unchanged, 210 magnetic valves are illustrated（2）In the presence of exception, need more Change 210 magnetic valve（2）And test again until pass the test.
- 5. ME-B types marine low-speed machine pressure accumulation block assembly function test method according to claim 4, it is characterised in that institute Stating step d is specially：Continue to raise input pressure to the 3rd pressure value, observe smaller pressure oil escape orifice（11）Whether place has oily leakage, if nothing Leakage, then prove 213 pressure-reducing valves（5）Normally, if there is leakage, 213 pressure-reducing valves are adjusted manually（5）Hexagonal is steady to system in head Pressure, then proceed to raise pressure, observe smaller pressure oil escape orifice（11）Whether place has oily leakage, if there is leakage, proving should 213 pressure-reducing valves（5）Normally, if No leakage, 213 pressure-reducing valves are proved（5）It is abnormal, it need to open and inspect or change 213 pressure-reducing valve（5） And test again to qualified.
- 6. ME-B types marine low-speed machine pressure accumulation block assembly function test method according to claim 5, it is characterised in that institute Stating step e is specially：Pressure testing oil input pressure is first reduced to zero, afterwards will smaller pressure oil escape orifice（11）Sealing, then proceed to raise pressure testing Oily input pressure observes larger pressure oil escape orifice to the 4th pressure value（9）Whether place has oily leakage, if No leakage, is proved 311 pressure-reducing valves（3）Function is normal, if there is leakage, adjusts 311 pressure-reducing valves manually（3）Hexagonal continues to steady pressure of system in head Pressure testing oil input pressure is raised, observes larger pressure oil escape orifice（9）Place whether have oily leakage, if there is leakage, prove this 311 Pressure-reducing valve（3）Normally, if No leakage, 311 pressure-reducing valves are proved（3）It is abnormal, it should be opened and inspect or be changed 311 pressure-reducing valve （3）And test again to qualified.
- 7. ME-B types marine low-speed machine pressure accumulation block assembly function test method according to claim 6, it is characterised in that institute Stating step f is specially：Open 315 ball valves（1）If there is big gauging from larger pressure oil escape orifice（9）Leakage, and oil pressure meter pressure is from the 4th pressure Value is quickly down to 0MPa, then illustrates 315 ball valves（1）Normally, 315 ball valves are illustrated if No leakage（1）Problem be present, should be torn open Examine or change 315 ball valve（1）And test again to qualified.
- 8. ME-B types marine low-speed machine pressure accumulation block assembly function test method according to claim 7, it is characterised in that：The first pressure value is 20MPa；The second pressure value is 22MPa；3rd pressure value is 31MPa；4th pressure value is 31.5MPa.
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| CN201710731430.4A CN107387498A (en) | 2017-08-23 | 2017-08-23 | ME Type B marine low-speed machine pressure accumulation block assembly function test methods |
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| CN201710731430.4A CN107387498A (en) | 2017-08-23 | 2017-08-23 | ME Type B marine low-speed machine pressure accumulation block assembly function test methods |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412199A (en) * | 2020-04-26 | 2020-07-14 | 攀钢集团攀枝花钢钒有限公司 | Fault detection method for hydraulic equipment |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20120088346A (en) * | 2011-01-31 | 2012-08-08 | 한국수력원자력 주식회사 | Apparatus of performance testing console for the Pilot Operated Check Valve |
| CN102155470A (en) * | 2011-05-27 | 2011-08-17 | 常德中联重科液压有限公司 | Automatic detection and debugging system and method of hydraulic valve |
| CN102338137A (en) * | 2011-08-25 | 2012-02-01 | 中联重科股份有限公司 | Method for detecting hydraulic valve, controller and device, method for detecting malfunction of hydraulic loop and device and malfunction processing system |
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| CN111412199A (en) * | 2020-04-26 | 2020-07-14 | 攀钢集团攀枝花钢钒有限公司 | Fault detection method for hydraulic equipment |
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Application publication date: 20171124 |